static void draw_distortion(SpaceClip *sc, ARegion *ar, MovieClip *clip,
int width, int height, float zoomx, float zoomy)
{
float x, y;
const int n = 10;
int i, j, a;
float pos[2], tpos[2], grid[11][11][2];
MovieTracking *tracking = &clip->tracking;
bGPdata *gpd = NULL;
float aspy = 1.0f / tracking->camera.pixel_aspect;
float dx = (float)width / n, dy = (float)height / n * aspy;
float offsx = 0.0f, offsy = 0.0f;
if (sc->mode != SC_MODE_DISTORTION)
return;
if (!tracking->camera.focal)
return;
if ((sc->flag & SC_SHOW_GRID) == 0 && (sc->flag & SC_MANUAL_CALIBRATION) == 0)
return;
view2d_to_region_float(&ar->v2d, 0.0f, 0.0f, &x, &y);
glPushMatrix();
glTranslatef(x, y, 0);
glScalef(zoomx, zoomy, 0);
glMultMatrixf(sc->stabmat);
glScalef(width, height, 0);
/* grid */
if (sc->flag & SC_SHOW_GRID) {
float val[4][2], idx[4][2];
float min[2], max[2];
for (a = 0; a < 4; a++) {
if (a < 2)
val[a][a % 2] = FLT_MAX;
else
val[a][a % 2] = -FLT_MAX;
}
zero_v2(pos);
for (i = 0; i <= n; i++) {
for (j = 0; j <= n; j++) {
if (i == 0 || j == 0 || i == n || j == n) {
BKE_tracking_distort_v2(tracking, pos, tpos);
for (a = 0; a < 4; a++) {
int ok;
if (a < 2)
ok = tpos[a % 2] < val[a][a % 2];
else
ok = tpos[a % 2] > val[a][a % 2];
if (ok) {
copy_v2_v2(val[a], tpos);
idx[a][0] = j;
idx[a][1] = i;
}
}
}
pos[0] += dx;
}
pos[0] = 0.0f;
pos[1] += dy;
}
INIT_MINMAX2(min, max);
for (a = 0; a < 4; a++) {
pos[0] = idx[a][0] * dx;
pos[1] = idx[a][1] * dy;
BKE_tracking_undistort_v2(tracking, pos, tpos);
DO_MINMAX2(tpos, min, max);
}
copy_v2_v2(pos, min);
dx = (max[0] - min[0]) / n;
dy = (max[1] - min[1]) / n;
for (i = 0; i <= n; i++) {
for (j = 0; j <= n; j++) {
BKE_tracking_distort_v2(tracking, pos, grid[i][j]);
grid[i][j][0] /= width;
grid[i][j][1] /= height * aspy;
pos[0] += dx;
}
pos[0] = min[0];
pos[1] += dy;
}
glColor3f(1.0f, 0.0f, 0.0f);
for (i = 0; i <= n; i++) {
glBegin(GL_LINE_STRIP);
for (j = 0; j <= n; j++) {
glVertex2fv(grid[i][j]);
}
glEnd();
}
for (j = 0; j <= n; j++) {
glBegin(GL_LINE_STRIP);
for (i = 0; i <= n; i++) {
glVertex2fv(grid[i][j]);
}
glEnd();
}
}
if (sc->gpencil_src == SC_GPENCIL_SRC_TRACK) {
MovieTrackingTrack *track = BKE_tracking_track_get_active(&sc->clip->tracking);
if (track) {
int framenr = ED_space_clip_get_clip_frame_number(sc);
MovieTrackingMarker *marker = BKE_tracking_marker_get_exact(track, framenr);
offsx = marker->pos[0];
offsy = marker->pos[1];
gpd = track->gpd;
}
}
else {
gpd = clip->gpd;
}
if (sc->flag & SC_MANUAL_CALIBRATION && gpd) {
bGPDlayer *layer = gpd->layers.first;
while (layer) {
bGPDframe *frame = layer->frames.first;
if (layer->flag & GP_LAYER_HIDE) {
layer = layer->next;
continue;
}
glColor4fv(layer->color);
glLineWidth(layer->thickness);
glPointSize((float)(layer->thickness + 2));
while (frame) {
bGPDstroke *stroke = frame->strokes.first;
while (stroke) {
if (stroke->flag & GP_STROKE_2DSPACE) {
if (stroke->totpoints > 1) {
glBegin(GL_LINE_STRIP);
for (i = 0; i < stroke->totpoints - 1; i++) {
float npos[2], dpos[2], len;
int steps;
pos[0] = (stroke->points[i].x + offsx) * width;
pos[1] = (stroke->points[i].y + offsy) * height * aspy;
npos[0] = (stroke->points[i + 1].x + offsx) * width;
npos[1] = (stroke->points[i + 1].y + offsy) * height * aspy;
len = len_v2v2(pos, npos);
steps = ceil(len / 5.0f);
/* we want to distort only long straight lines */
if (stroke->totpoints == 2) {
BKE_tracking_undistort_v2(tracking, pos, pos);
BKE_tracking_undistort_v2(tracking, npos, npos);
}
sub_v2_v2v2(dpos, npos, pos);
mul_v2_fl(dpos, 1.0f / steps);
for (j = 0; j <= steps; j++) {
BKE_tracking_distort_v2(tracking, pos, tpos);
glVertex2f(tpos[0] / width, tpos[1] / (height * aspy));
add_v2_v2(pos, dpos);
}
}
glEnd();
}
else if (stroke->totpoints == 1) {
glBegin(GL_POINTS);
glVertex2f(stroke->points[0].x + offsx, stroke->points[0].y + offsy);
glEnd();
}
}
stroke = stroke->next;
}
frame = frame->next;
}
layer = layer->next;
}
glLineWidth(1.0f);
glPointSize(1.0f);
}
glPopMatrix();
}
bNode *node_group_make_from_selected(bNodeTree *ntree)
{
bNodeLink *link, *linkn;
bNode *node, *gnode, *nextn;
bNodeTree *ngroup;
bNodeSocket *gsock;
ListBase anim_basepaths = {NULL, NULL};
float min[2], max[2];
int totnode=0;
bNodeTemplate ntemp;
INIT_MINMAX2(min, max);
/* is there something to group? also do some clearing */
for(node= ntree->nodes.first; node; node= node->next) {
if(node->flag & NODE_SELECT) {
/* no groups in groups */
if(node->type==NODE_GROUP)
return NULL;
DO_MINMAX2( (&node->locx), min, max);
totnode++;
}
node->done= 0;
}
if(totnode==0) return NULL;
/* check if all connections are OK, no unselected node has both
inputs and outputs to a selection */
for(link= ntree->links.first; link; link= link->next) {
if(link->fromnode && link->tonode && link->fromnode->flag & NODE_SELECT)
link->tonode->done |= 1;
if(link->fromnode && link->tonode && link->tonode->flag & NODE_SELECT)
link->fromnode->done |= 2;
}
for(node= ntree->nodes.first; node; node= node->next) {
if((node->flag & NODE_SELECT)==0)
if(node->done==3)
break;
}
if(node)
return NULL;
/* OK! new nodetree */
ngroup= ntreeAddTree("NodeGroup", ntree->type, NODE_GROUP);
/* move nodes over */
for(node= ntree->nodes.first; node; node= nextn) {
nextn= node->next;
if(node->flag & NODE_SELECT) {
/* keep track of this node's RNA "base" path (the part of the pat identifying the node)
* if the old nodetree has animation data which potentially covers this node
*/
if (ntree->adt) {
PointerRNA ptr;
char *path;
RNA_pointer_create(&ntree->id, &RNA_Node, node, &ptr);
path = RNA_path_from_ID_to_struct(&ptr);
if (path)
BLI_addtail(&anim_basepaths, BLI_genericNodeN(path));
}
/* change node-collection membership */
BLI_remlink(&ntree->nodes, node);
BLI_addtail(&ngroup->nodes, node);
node->locx-= 0.5f*(min[0]+max[0]);
node->locy-= 0.5f*(min[1]+max[1]);
}
}
/* move animation data over */
if (ntree->adt) {
LinkData *ld, *ldn=NULL;
BKE_animdata_separate_by_basepath(&ntree->id, &ngroup->id, &anim_basepaths);
/* paths + their wrappers need to be freed */
for (ld = anim_basepaths.first; ld; ld = ldn) {
ldn = ld->next;
MEM_freeN(ld->data);
BLI_freelinkN(&anim_basepaths, ld);
}
}
/* make group node */
ntemp.type = NODE_GROUP;
ntemp.ngroup = ngroup;
gnode= nodeAddNode(ntree, &ntemp);
gnode->locx= 0.5f*(min[0]+max[0]);
gnode->locy= 0.5f*(min[1]+max[1]);
/* relink external sockets */
for(link= ntree->links.first; link; link= linkn) {
linkn= link->next;
if(link->fromnode && link->tonode && (link->fromnode->flag & link->tonode->flag & NODE_SELECT)) {
BLI_remlink(&ntree->links, link);
BLI_addtail(&ngroup->links, link);
}
else if(link->tonode && (link->tonode->flag & NODE_SELECT)) {
gsock = node_group_expose_socket(ngroup, link->tosock, SOCK_IN);
link->tosock->link = nodeAddLink(ngroup, NULL, gsock, link->tonode, link->tosock);
link->tosock = node_group_add_extern_socket(ntree, &gnode->inputs, SOCK_IN, gsock);
link->tonode = gnode;
}
else if(link->fromnode && (link->fromnode->flag & NODE_SELECT)) {
/* search for existing group node socket */
for (gsock=ngroup->outputs.first; gsock; gsock=gsock->next)
if (gsock->link && gsock->link->fromsock==link->fromsock)
break;
if (!gsock) {
gsock = node_group_expose_socket(ngroup, link->fromsock, SOCK_OUT);
gsock->link = nodeAddLink(ngroup, link->fromnode, link->fromsock, NULL, gsock);
link->fromsock = node_group_add_extern_socket(ntree, &gnode->outputs, SOCK_OUT, gsock);
}
else
link->fromsock = node_group_find_output(gnode, gsock);
link->fromnode = gnode;
}
}
ngroup->update |= NTREE_UPDATE;
ntreeUpdateTree(ngroup);
ntree->update |= NTREE_UPDATE_NODES|NTREE_UPDATE_LINKS;
ntreeUpdateTree(ntree);
return gnode;
}